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Nonprofit · EIN 04-3177556

MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T

Tax-exempt · CAMBRIDGE, MA 02139

Financials

$75.9M$51M2022$66.5M$55M2023$55.4M$64.2M2024
Revenue Expenses · by fiscal year end
Financials of MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T by year, from its e-filed returns
Year endedFormRevenueExpensesNet incomeTotal assetsLiabilitiesNet assets
June 30, 2025990$55,434,000$64,245,000-$8,811,000$1,155,540,000$50,233,000$1,105,307,000
June 30, 2024990$66,489,000$54,982,000$11,507,000$1,010,214,000$24,735,000$985,479,000
June 30, 2023990$75,943,000$50,984,000$24,959,000$937,723,000$22,974,000$914,749,000
Financial details: 990 for the year ended June 30, 2025

Revenue

Contributions, gifts and grants
$0
Program service revenue
$29,931,000
Investment income
$25,503,000
Net gain from sales of assets
$19,460,000
Other revenue
$0

Expenses

Grants and similar amounts paid
$0
Benefits paid to members
$58,808,000
Salaries, compensation and benefits (total)
$0
Professional fundraising fees
$0
Program services (functional)
$60,791,000
Management and general (functional)
$3,454,000

Balance sheet and other

Total assets, start of year
$1,010,214,000
Total assets, end of year
$1,155,540,000
Total liabilities, end of year
$50,233,000
Net assets, end of year
$1,105,307,000
Publicly traded securities
$234,776,000
Net assets without donor restrictions
$1,105,307,000
Gross unrelated business income
-$182,000
Gross receipts
$921,046,000
Employees
0
Volunteers
0
Year formed
1992
State of legal domicile
MA

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended June 30, 2025, highest compensation first.

NameTitleHours / weekCompensationFrom related orgsOther / benefits
Seth AlexanderTrustee
Trustee or director
1$0$3,845,075$617,315
Glen ShorTrustee
Trustee or director
1$0$950,529$76,638
990 for the year ended June 30, 2024: 2 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
Seth AlexanderTrustee
Trustee or director
1$0$3,134,866$613,448
Glen ShorTrustee
Trustee or director
1$0$883,134$73,021
990 for the year ended June 30, 2023: 2 people
NameTitleHours / weekCompensationFrom related orgsOther / benefits
Seth AlexanderTrustee
Trustee or director
1$0$2,635,663$457,443
Glen ShorTrustee
Trustee or director
1$0$795,890$68,243

Address and contacts

Address (IRS master file)
77 MASSACHUSETTS AVENUE NE49-4000, CAMBRIDGE, MA 02139-4301
In care of
% BASIL A STEWART
Principal officer (990 for 2024)
GLEN SHOR, 77 Massachusetts Avenue, Cambridge, MA 02139
Signed the 990
JODI KESSLER, DIRECTOR, TAX AND GLOBAL OPERATIONS
Phone
(617) 253-2734

Mission

TO PROVIDE HEALTH AND LIFE INSURANCE BENEFITS TO COVERED ELIGIBLE RETIREES OF MASSACHUSETTS INSTITUTE OF TECHNOLOGY AND THEIR DEPENDENTS, AS WELL AS INDIVIDUALS RECEIVING LONG-TERM DISABILITY BENEFITS FOR AT LEAST THREE YEARS.

990 for the year ended June 30, 2025

Program accomplishments

  • MEDICAL AND LIFE INSURANCE BENEFITS FOR ELIGIBLE RETIREES, ALONG WITH MEDICAL BENEFITS FOR THOSE RECEIVING LONG TERM DISABILITY BENEFITS FOR AT LEAST THREE YEARS, WERE PROVIDED TO APPROXIMATELY 7,446 INDIVIDUALS COVERED UNDER THE MASSACHUSETTS INSTITUTE OF TECHNOLOGY (MIT) WELFARE BENEFIT PLANS TRUST.
    Expenses $60,791,000 · revenue $29,931,000

What it must file and when

IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025December 31, 2025May 15, 2026Not on file
2024December 31, 2024May 15, 2025Check at the IRS
2023December 31, 2023May 15, 2024Check at the IRS

IRS record

EIN
04-3177556
Tax-exempt status
501(c)(3): Charitable, religious, educational or scientific organization
Foundation status
Supporting organization (509(a)(3))
Donations deductible (Pub 78)
Supporting organization of unknown type
Exempt since
1993
Accounting year ends
December
Files
Form 990 or 990-EZ
Assets (IRS master file)
$1,155,540,000
Income (IRS master file)
$921,046,000

Filing history

FormYear endedRevenueExpensesAssetsReturn
990June 2025$55,434,000$64,245,000$1,155,540,000IRS
990-TJune 2025–––IRS
990June 2024$66,489,000$54,982,000$1,010,214,000IRS
990-TJune 2024–––IRS
990June 2023$75,943,000$50,984,000$937,723,000XML
990-TJune 2023–––IRS
990June 2022$184,682,000$42,698,000$957,104,000IRS
990-TJune 2022–––IRS
990June 2021–––IRS
990-TJune 2021–––IRS
990June 2020–––IRS
990June 2018–––IRS

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 04-3177556).

Questions about MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T

What is the EIN of MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T?
The employer identification number (EIN) of MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T is 04-3177556.
Is MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1993.
Are donations to MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T tax-deductible?
Yes. It is listed in IRS Publication 78 (Supporting organization of unknown type).
Which annual return does MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T file?
Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
When is the next return of MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T due?
The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
When did MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T last file with the IRS?
The latest return in the IRS public files is the 990 for the year ended June 2025.
Who is the principal officer of MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T?
The 990 for the year ended June 30, 2025 names GLEN SHOR.
Who are the officers and directors of MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T?
The 990 for the year ended June 30, 2025 lists 2 people; 0 received compensation from the organization.
How much revenue does MASSACHUSETTS INSTITUTE OF TECHNOLOGY WELFARE BENEFIT PLANS T have?
On its 990 for the year ended June 30, 2025 it reported revenue of $55,434,000, expenses of $64,245,000 and total assets of $1,155,540,000 at year end.

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